Acetabular microfracture in hip arthroscopy: clinical outcomes with minimum 5-year follow-up

Author:

Domb Benjamin G12,Rybalko Danil3,Mu Brian1,Litrenta Jody4,Chen Austin W15,Perets Itay16

Affiliation:

1. American Hip Institute, Westmont, Illinois, USA

2. Hinsdale Orthopaedics, New York, USA

3. University of Illinois at Chicago, Chicago, Illinois, USA

4. New York University Hospital for Joint Disease, New York, USA

5. Boulder Centre for Orthopedics, Boulder, Colorado, USA

6. Hadassah Hebrew University Hospital, Jerusalem, Israel

Abstract

Introduction: There is a paucity in the literature regarding mid-term results of microfracture in hip arthroscopy. We aim to assess 5-year outcomes of patients who underwent acetabular microfracture for full-thickness chondral lesions as a part of hip arthroscopy. Methods: Between August 2008 and September 2011, data were prospectively gathered for patients undergoing acetabular microfracture during hip arthroscopy with minimum 5-year follow-up. All patients were assessed pre- and postoperatively, with modified Harris Hip Score (mHHS), Non-Arthritic Hip Score (NAHS), Hip Outcome Score – Sports Specific Subscale (HOS-SSS), and visual analog scale (VAS). International Hip Outcome Tool (iHOT-12) and satisfaction were collected postoperatively. Exclusion criteria included previous hip conditions, or preoperative Tönnis grade ≥2. Results: Fifty three hips were eligible for this study. Of these, 43 (81.1%) hips in 42 patients had follow-up. The study group had a male majority (65.1%) and an average age of 44.4 ± 9.5 years. There was statistically significant improvement in all patient-reported outcomes (PROs) and VAS at follow-up. Patient satisfaction was 7.6 ± 2.6. A comparison of 2-year to minimum 5-year follow-up results identified no statistically significant deterioration in PROs, VAS, and patient satisfaction. Survivorship was 72.1% with 12 patients converted to total hip arthroplasty (THA). 4 patients (10.8%) underwent secondary arthroscopy. Conclusions: In the mid-term, microfracture as a part of hip arthroscopy demonstrated favourable outcomes and 72% survivorship. Careful patient selection is warranted to limit the risk of conversion to THA.

Publisher

SAGE Publications

Subject

Orthopedics and Sports Medicine,Surgery

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